R : Copyright 2004, The R Foundation for Statistical Computing
Version 2.0.1  (2004-11-15), ISBN 3-900051-07-0

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> 
>  library(aster)
> 
>  .C("aster_check_model",
+      nind = as.integer(42),
+      nnode = as.integer(4),
+      pred = as.integer(c(0, 1, 2, 3)),
+      fam = as.integer(c(1, 1, 2, 3)))
$nind
NULL

$nnode
NULL

$pred
NULL

$fam
NULL

> 
>  options(error=dump.frames)
> 
>  .C("aster_check_model",
+      nind = as.integer(0),
+      nnode = as.integer(4),
+      pred = as.integer(c(0, 1, 2, 3)),
+      fam = as.integer(c(1, 1, 2, 3)))
Error: 'nind' must be positive integer
> 
>  .C("aster_check_model",
+      nind = as.integer(42),
+      nnode = as.integer(-3),
+      pred = as.integer(c(0, 1, 2, 3)),
+      fam = as.integer(c(1, 1, 2, 3)))
Error: 'nnode' must be positive integer
> 
>  .C("aster_check_model",
+      nind = as.integer(42),
+      nnode = as.integer(4),
+      pred = as.integer(c(0, 2, 2, 3)),
+      fam = as.integer(c(1, 1, 2, 3)))
Error: pred[2] = 2, invalid
> 
>  .C("aster_check_model",
+      nind = as.integer(42),
+      nnode = as.integer(4),
+      pred = as.integer(c(0, 1, 2, 3)),
+      fam = as.integer(c(1, 1, 2, 4)))
Error: family 4 not valid
> 
>